Experimental Modal Identification of Vibro-Acoustic Cavities with Calibrated Acoustic Source Universidade de Brasilia

Format:

Conference/Event

Author/Creator:

de Melo Filho, de Melo Filho, author.

Contributor:

de Carvalho, Mario Olavo Magno

de Morais, Marcus Vinicius Girao

Ferreira, Alvaro Campos

Conference Name:

SAE Brasil International Noise and Vibration Colloquium 2012 (2012-11-25 : Sao Paulo, Brazil)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2012

Summary:

The present work show experimental modal identification of an acoustic cavity with a calibrated source. Outside of a rigid cavity, the acoustic source is delivered by a speaker connected to a flexible duct with one microphone at the end. This experimental apparatus allows identifying the acoustic excitation inside the rigid box. With another microphone inside the cavity, it's possible to obtain FRFs measurements and make acoustic modal identification of the rigid box. The experimental data are compared with numerical results and analytical solution

Notes:

Vendor supplied data

Publisher Number:

2012-36-0619

Access Restriction:

Restricted for use by site license